1Three masses are arranged in the (x, y)
plane as shown.
7kg at (-3,1)
8kg at (0,0)
9kg at (1,2)
What is the magnitude of the result-
ing force on the 8 kg mass at the ori-
gin? The universal gravitational constant is
6.6726 × 10^−11 N · m^2/kg^2 . Answer in units
of N.
part...